1905/ (Set : C) P. T. O.

CLASS : 10th (Secondary) Code No. 1905 Series : Sec. M/2017

Roll No.

foKku foKku foKku foKku SCIENCE

(Physics, Chemistry and Life Science)

(Academic/Open)

[ fgUnh ,oa vaxzsth ek/;e ]

[ Hindi and English Medium ]

(Only for Fresh Candidates)

( Morning Session )

le; : 3 ?k.Vs ] [ iw.kk±d : 60 Time allowed : 3 hours ] [ Maximum Marks : 60

• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr iz'u 27 gSaA Please make sure that the printed this question paper are contains 27

questions.

• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcjdksM uEcjdksM uEcjdksM uEcj rFkk lsVlsVlsVlsV dks Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA The Code No. and Set on the right side of the question paper should be

written by the candidate on the front page of the answer-book.

• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad vo'; fy[ksaA

Before beginning to answer a question, its Serial Number must be written.

• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A

Don't leave blank page/pages in your answer-book.

SET : C

HBSE Class 10 Science Question Paper 2017 Set C

( 2 ) 1905/ (Set : C)

1905/ (Set : C)

• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr% vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA

Except answer-book, no extra sheet will be given. Write to the point and do

not strike the written answer.

• ijhkkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA

Candidates must write their Roll Number on the question paper.

• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i= iw.kZ o lgh gS] ijhkk ds ijhkk ds ijhkk ds ijhkk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok Lohdkj ugha fd;k tk;sxkAmijkUr bl lEcU/k esa dksbZ Hkh nkok Lohdkj ugha fd;k tk;sxkAmijkUr bl lEcU/k esa dksbZ Hkh nkok Lohdkj ugha fd;k tk;sxkAmijkUr bl lEcU/k esa dksbZ Hkh nkok Lohdkj ugha fd;k tk;sxkA

Before answering the question, ensure that you have been supplied the

correct and complete question paper, no claim in this regard, will be

entertained after examination.

uksV %uksV %uksV %uksV % (i) lHkh iz'u vfuok;Z gSaAlHkh iz'u vfuok;Z gSaAlHkh iz'u vfuok;Z gSaAlHkh iz'u vfuok;Z gSaA

All questions are compulsory.

(ii) oLrqfu"B iz'uksa ds lghlghlghlgh fodYi fy[ksaA

Write the correct option in objective type questions.

(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA

Internal choice has been provided in long answer type questions.

(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA

Marks of each question are indicated against it.

[k.M[k.M[k.M[k.M – vvvv

SECTION – A [ Marks : 20

( 3 ) 1905/ (Set : C)

1905/ (Set : C) P. T. O.

¼HkkSfrd foKku½¼HkkSfrd foKku½¼HkkSfrd foKku½¼HkkSfrd foKku½

(Physics)

1. lw;ksZn; ds le; lw;Z dk jax yky fdl dkj.k ls fn[kkbZ nsrk gS \ 1

(a) ijkorZu (b) viorZu

(c) foksi.k (d) izdh.kZu

Colour of the sun at sunrise is red due to :

(a) Reflection (b) Refraction

(c) Dispersion (d) Scattering

2. us= dk og Hkkx tks iqryh ds vkdkj dks fu;af=r djrk gS % 1

(a) us=xksyd (b) LoPN eaMy

(c) ifjrkfjdk (d) jsfVuk

Part of the eye that controls the size of the pupil is called as :

(a) Eyeball (b) Cornea

(c) Iris (d) Retina

3. ,d rk¡cs ds rkj dk vuqizLFk dkV ks=Qy mruk gh j[krs gq,] mldh yEckbZ nksxquh dj nh

tk,] rks bldh izfrjks/kdrk % 1

(a) nks xquh gks tk,xh (b) vk/kh gks tk,xh

( 4 ) 1905/ (Set : C)

1905/ (Set : C)

(c) mruh gh jgsxh (d) blesa ls dksbZ ugha

If the length of copper wire is doubled keeping same area of cross-

section, its resistivity will :

(a) Doubled (b) Halved

(c) Remains same (d) None of these

4. ck;ksxSl esa lokZf/kd ek=k esa gksrh gS % 1

(a) ehFksu (b) dkcZu MkbvkWDlkbM

(c) bFksu (d) gkbMªkstu

Maximum content of Biogas is :

(a) Methane (b) 2CO

(c) Ethane (d) Hydrogen

5. pkjdksy D;k gksrk gS \ ;g dSls ,d vPNk bZa/ku gS \ 2

What is charcoal ? How it is a good fuel ?

( 5 ) 1905/ (Set : C)

1905/ (Set : C) P. T. O.

6. fdlh 6Ω izfrjks/kd ls izfr lsadM 150 J Å"ek mRiUu gks jgh gSA izfrjks/kd ds fljksa ij

foHkokarj Kkr dhft,A 2

150 Joule of heat is produced each second in a 6Ω resistance.

Find the potential difference across the resistor.

7. ty ds HkkSe ty ds :i esa lajk.k ds D;k ykHk gSa \ 2

What are the advantages of water stored in the ground ?

8. fdj.k vkjs[k dh lgk;rk ls ,d vory niZ.k ds oØrk dsUnz C ls ijs fLFkr fcac ds izfrfcac

dh fLFkfr] vkdkj rFkk izÑfr dks of.kZr dhft,A 4

Using ray diagram, explain position, size and nature of image of an

object placed beyond centre of curvature C of a concave mirror.

9. pqacdh; ks= esa j[ks fdlh fo|qr~ /kkjkokgh pkyd ij yxus okys cy dk o.kZu dhft,A bl cy

dh fn'kk izkIr djus okys fu;e dk mYys[k dhft,A og dkSu-ls ;a= gSa ftuesa fo|qr~ /kkjkokgh

pkyd rFkk pqacdh; ks=ksa dk mi;ksx gksrk gS \ 4 + 1 + 1

( 6 ) 1905/ (Set : C)

1905/ (Set : C)

Explain the force on a current carrying conductor in a magnetic field.

Write about the rule to find direction of this force. What are the devices

in which current carrying conductors and magnetic fields are used ?

vFkokvFkokvFkokvFkok

OR

fo|qr~ eksVj dk ukekafdr vkjs[k [khafp,A bldk fl)kUr rFkk dk;Zfof/k Li"V dhft,A fo|qr~

eksVj esa foHkDr oy; dk D;k egRo gS \ 6

Draw a labelled diagram of an electric motor. Explain its principle and

working. What is the function of split ring in an electric motor ?

[k.M[k.M[k.M[k.M – cccc

SECTION – B [Marks : 19

¼jlk;u foKku½¼jlk;u foKku½¼jlk;u foKku½¼jlk;u foKku½

(Chemistry)

10. FeOAlAlOFe 22 3232 +→+

Åij nh xbZ vfHkfØ;k esa fdldk vip;u gqvk gS \ 1

(a) 32OFe (b) Al

(c) 32OAl (d) buesa ls dksbZ ugha

( 7 ) 1905/ (Set : C)

1905/ (Set : C) P. T. O.

FeOAlAlOFe 22 3232 +→+

Which is reduced in above reaction ?

(a) 32OFe (b) Al

(c) 32OAl (d) None of these

11. flfVªd vEy ik;k tkrk gS % 1

(a) VekVj esa (b) beyh esa

(c) uhacw esa (d) [kV~Vs nw/k esa

Citric acid is found in :

(a) Tomato

(b) Tamarind

(c) Lemon

(d) Sour milk

12. rRo 2, XClX lw= okyk ,d DyksjkbM cukrk gSA vkorZ lkj.kh esa ;g rRo laHkor% fdl

lewg ds varxZr gksxk \ 1

(a) Na (b) Mg

(c) Si (d) Al

( 8 ) 1905/ (Set : C)

1905/ (Set : C)

Element X forms a chloride with the formula 2XCl . X would most likely

be in the same group of the periodic table as :

(a) Na (b) Mg

(c) Si (d) Al

13. foLFkkiu vfHkfØ;k ls vki D;k le>rs gSa \ ,d ,d ,d ,d mnkgj.k nhft,A 2

What do you mean by displacement reaction ? Give one example.

14. vEyh; o"kkZ D;k gS \ bldk tyh; thoksa ij D;k izHkko gksrk gS \ 2

What is Acid Rain ? How does it affect aquatic life ?

15. vkids vuqlkj mRÑ"V xSlksa dks vyx lewg esa D;ksa j[kk x;k gS \ 2

According to you, why noble gases are placed in a separate group ?

16. (a) vk;fud ;kSfxd fdl voLFkk esa ik;s tkrs gSa \ buds xyukad vf/kd D;ksa gksrs gSa \

2

In which state ionic compound exists ? Why do they have high

melting point ?

(b) lfØ;rk Js.kh esa uhps vkus okyh /kkrqvksa ds fu"d"kZ.k dk o.kZu dhft,A 2

Explain the extraction of metals low in reactivity series.

( 9 ) 1905/ (Set : C)

1905/ (Set : C) P. T. O.

17. dkcZu ;kSfxdksa ds fuEufyf[kr xq.kksa dk mnkgj.k lfgr o.kZu dhft, % 2 × 3 = 6

(i) vkWDlhdj.k vfHkfØ;k

(ii) ladyu vfHkfØ;k

(iii) izfrLFkkiu vfHkfØ;k

Explain with examples the following properties of carbon compounds :

(i) Oxidation Reaction

(ii) Addition Reaction

(iii) Substitution Reaction

vFkokvFkokvFkokvFkok

OR

(a) isUVsu ds lHkh leko;oksa dh lajpuk,¡ fpf=r dhft,A 3

Draw the structures of all possible isomers of pentane.

(b) fuEu ;kSfxdksa dh lajpuk,¡ fpf=r dhft, % 1 × 3 = 3

(i) ,FksukWbd vEy

(ii) gsDlsuSy

(iii) C;wVsuksu

Draw the structures for the following compounds :

(i) Ethanoic acid

(ii) Hexanal

(iii) Butanone

( 10 ) 1905/ (Set : C)

1905/ (Set : C)

[k.M[k.M[k.M[k.M – llll

SECTION – C [ Marks : 21

¼tho foKku½¼tho foKku½¼tho foKku½¼tho foKku½

(Life Science)

18. fuEufyf[kr esa dkSu-lk gkWeksZu o`f) dk laneu djrk gS \ 1

(a) vkWfDlu (b) lkbVksdkbfuu

(c) ftCcsjsfyu (d) buesa ls dksbZ ugha

Which of the following hormone inhibit the growth ?

(a) Auxin

(b) Cytokinin

(c) Gibberellin

(d) None of these

19. fuEufyf[kr esa ls dkSu-lk Hkkoh izjksg gS \ 1

(a) ewykadqj

(b) izkadqj

(c) chti=

( 11 ) 1905/ (Set : C)

1905/ (Set : C) P. T. O.

(d) buesa ls dksbZ ugha

Which of the following is future shoot ?

(a) Radicle

(b) Plumule

(c) Cotyledon

(d) None of these

20. fuEufyf[kr esa ls fdlesa iSnk gksus okys tho vkuqoaf'kd :i ls fHkUu gksrs gSa \ 1

(a) ySafxd tuu

(b) vySafxd tuu

(c) dkf;d izo/kZu

(d) ;s lHkh

In which of the following, the organisms produced are genetically

dissimilar ?

(a) Sexual reproduction

(b) Asexual reproduction

(c) Vegetative propagation

(d) All of these

21. dkf;d izo/kZu dh nksnksnksnks i)fr;ksa ds uke fyf[k,A 1

( 12 ) 1905/ (Set : C)

1905/ (Set : C)

Write down the names of two methods of vegetative reproduction.

22. ifj/kh; raf=dk ra= fdls dgrs gSa \ 1

What is peripheral nervous system ?

23. vuqefLr"d vkSj esMqyk ds dk;ks± dks fyf[k,A 2

Write down the functions of cerebellum and medulla.

24. ikfjra= ds fofHkUu tSo ?kVd vkSj vtSo ?kVd D;k gSa \ 2

What are the various biotic and abiotic components of Ecosystem ?

25. ,d iq"i dh vuqnS?;Z dkV dk ukekafdr fp= cukb,A

Draw a well labelled diagram of Longitudinal section of a flower.

26. taxyh xksHkh dk mnkgj.k nsrs gq, Ñf=e p;u dk o.kZu dhft,A 4

Describe the artificial selection by giving example of wild cabbage.

27. o`Ddk.kq dh lajpuk dk o.kZu dhft, vkSj ew= fdl izdkj rS;kj gksrk gS \ 6

( 13 ) 1905/ (Set : C)

1905/ (Set : C) P. T. O.

Describe the structure of nephron and how is urine produced ?

vFkokvFkokvFkokvFkok

OR

(i) izdk'k la'ys"k.k D;k gS \ bl izØe ds nkSjku gksus okyh fofHkUu ?kVukvksa dks fyf[k,A

1 + 3 = 4

What is photosynthesis ? Write various events which take place

during this process.

(ii) ja/kz fdl izdkj [kqyrs vkSj can gksrs gSa \ 2

How does the opening and closing of stomata take place ?

s